Christopher's work explores intellectual histories of race and resistance in the United States and has been featured in The Washington Post, The New York Times, NBC News, The New Yorker, Harper's Magazine, Boston Review, and GQ. His work has also appeared on NPR and has been debated in the U.S. House of Representatives.

His current book project— Real White: Histories of White Supremacy in New England (Haymarket Books)—contests New England’s self-presentation as an imagined community of racial piety, white homogeneity, and antiracist myth-making.